The short answer
The AVG BSC models this page covers share one construction and therefore one failure pattern: a heavier cabinet built for frequent opening and a warm room, with forced-air cooling, a coarse condenser behind a front or rear grille and a drain arrangement designed to run continuously. When one of these will not hold temperature, the cause is usually upstream of the sealed system, and the check that separates the cheap causes from the expensive one takes minutes rather than a service call.
What you observe on these models
- The cabinet is warm and the machine is plainly running — A unit that is working and never arriving is the presentation this page is about, and it is not the same fault as a cabinet that is silent.
- It runs continuously and never settles — On a commercial-style undercounter cabinet a cycle that never ends means the machine has lost either its heat path or its air path — it has not lost its will to cool.
- One part of the interior is right and another is not — A temperature that varies across the cabinet is an airflow report.
- NEAR MISS — the cabinet is silent and nothing is cold — That is a power, start-relay or control fault rather than a cooling fault, and it belongs on a different page.
Causes, most likely first on BSC
- The room the cabinet is standing in — Every cabinet is rated against an ambient range. Outside it the machine is not faulty, it is beaten, and it presents as a unit that runs continuously and still drifts warm. This class is specified for a warm room, but a warm room plus a dirty condenser is past what it was built for. First on this family. On an undercounter bottle cabinet the path this fault travels is shorter and more exposed than the generic advice assumes.
- A dirty or obstructed condenser — The condenser is where the heat leaves. Once it is blanketed in dust or fed its own warm exhaust, the circuit cannot reject heat and the cabinet warms no matter how long the compressor runs.
- The door and its seal — A glass or gasketed door that no longer pulls up tight lets room air in continuously, and the machine answers by running without ever arriving.
- Blocked airflow inside the cabinet — Cold that is made correctly and then cannot circulate produces exactly the same complaint as cold that was never made: a warm cabinet with a machine that is plainly working. Last on this list, and the item that every cause above it can imitate exactly.
Check in this order, and why that order
- Start at the heat path: look at the condenser before anything else — on this class of cabinet it is the single most common root cause and the cheapest to rule out — The front grille and the machine bay behind it, and the interior rear panel once the shelving is out.
- Check the door on its seal, all the way round — Close it on a strip of paper at several points and pull.
- Only then consider the sealed system — By this point four cheaper causes are eliminated.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off.
Models this page covers — the BSC family
Reference| Model number | Family key |
|---|---|
| BSC27SB | avg:refrigerator:bsc |
| BSC42DB | avg:refrigerator:bsc |
| BSC46DB | avg:refrigerator:bsc |
When to call a technician
Call when the condenser is clean, the door closes on its seal, and the cabinet still will not pull down in a warm room. Call immediately if you can smell burning, if the machine trips protection repeatedly, or if there is oil rather than water in the machine bay — oil outside the tubing means the circuit is open, and every hour it runs after that costs more to put right. A note on scope: this page is written for the BSC undercounter bottle cabinet and for the 3 model numbers the variant table names. A sibling family from the same brand will have a different order.
Other problems covered for the BSC family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
